/// <summary>
 /// Enterkey and backspace navigation of cmbServiceAC
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void cmbServiceAC_KeyDown(object sender, KeyEventArgs e)
 {
     try
     {
         if (e.KeyCode == Keys.Enter)
         {
             cmbCurrency.Focus();
             cmbCurrency.SelectionLength = 0;
             cmbCurrency.SelectionStart = 0;
         }
         if (e.KeyCode == Keys.Back)
         {
             if (cmbServiceAC.Text == string.Empty || cmbServiceAC.SelectionStart == 0)
             {
                 txtCreditPeriod.Focus();
                 txtCreditPeriod.SelectionStart = 0;
                 txtCreditPeriod.SelectionLength = 0;
             }
         }
         /*-------------------------------------------------Ledger pop up when Ctrl+F----------------------------------------------------------------------------------------*/
         if (e.KeyCode == Keys.F && Control.ModifierKeys == Keys.Control) //Pop Up
         {
             if (cmbServiceAC.Focused)
             {
                 cmbServiceAC.DropDownStyle = ComboBoxStyle.DropDown;
             }
             else
             {
                 cmbServiceAC.DropDownStyle = ComboBoxStyle.DropDownList;
             }
             if (cmbServiceAC.SelectedIndex != -1)
             {
                 frmLedgerPopup frmLedgerPopupObj = new frmLedgerPopup();
                 frmLedgerPopupObj.MdiParent = formMDI.MDIObj;
                 frmLedgerPopupObj.CallFromServiceVoucher(this, Convert.ToDecimal(cmbServiceAC.SelectedValue.ToString()), "ServiceAccount");
             }
             else
             {
                 Messages.InformationMessage("Select any service Account");
             }
         }
         /*------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
     }
     catch (Exception ex)
     {
         MessageBox.Show("SV 68 : " + ex.Message, "OpenMiracle", MessageBoxButtons.OK, MessageBoxIcon.Information);
     }
 }
 /// <summary>
 /// Enterkey and backspace navigation of cmbCashOrParty
 /// For shortcut keys
 /// ctrl+f for ledger popup
 /// Alt+c for ledger creation
 /// </summary>
 /// <param name="sender"></param>
 /// <param name="e"></param>
 private void cmbCashParty_KeyDown(object sender, KeyEventArgs e)
 {
     try
     {
         if (e.KeyCode == Keys.Enter)
         {
             txtCreditPeriod.Focus();
             txtCreditPeriod.SelectionLength = 0;
             txtCreditPeriod.SelectionStart = txtCreditPeriod.Text.Length;
         }
         if (e.KeyCode == Keys.Back)
         {
             if (cmbCashParty.Text == string.Empty || cmbCashParty.SelectionStart == 0)
             {
                 txtVoucherDate.Focus();
                 txtVoucherDate.SelectionStart = 0;
                 txtVoucherDate.SelectionLength = 0;
             }
         }
         /*-------------------------------------------------Ledger pop up when Ctrl+F----------------------------------------------------------------------------------------*/
         if (e.KeyCode == Keys.F && Control.ModifierKeys == Keys.Control) //Ledger pop up
         {
             if (cmbCashParty.Focused)
             {
                 cmbCashParty.DropDownStyle = ComboBoxStyle.DropDown;
             }
             else
             {
                 cmbCashParty.DropDownStyle = ComboBoxStyle.DropDownList;
             }
             if (cmbCashParty.SelectedIndex != -1)
             {
                 frmLedgerPopup frmLedgerPopupObj = new frmLedgerPopup();
                 frmLedgerPopupObj.MdiParent = formMDI.MDIObj;
                 frmLedgerPopupObj.CallFromServiceVoucher(this, Convert.ToDecimal(cmbCashParty.SelectedValue.ToString()), "CashOrSundryCreditors");
             }
             else
             {
                 Messages.InformationMessage("Select any cash or party");
             }
         }
         /*------------------------------------------------------------------------------------------------------------------------------------------------------------------*/
         if (e.KeyCode == Keys.C && Control.ModifierKeys == Keys.Alt)//Ledger creation
         {
             SendKeys.Send("{F10}");
             btnAdd_Click(sender, e);
         }
     }
     catch (Exception ex)
     {
         MessageBox.Show("SV 66 : " + ex.Message, "OpenMiracle", MessageBoxButtons.OK, MessageBoxIcon.Information);
     }
 }